CLV carrier copy protection system

Abstract

In a manufacturing process of a continuous linear velocity (CLV) storage medium, a method for rendering a file stored on the CLV storage medium immunized against an unauthorized duplication. The CLV includes a plurality of consecutive blocks, each including a data section and control section. The control section includes an error correction and an error detection code. The blocks are configured in a given format. The method includes the steps of: (a) modifying a portion of the data section in a block so as to constitute modified data section. The modified data constitutes reconfigured format which violates the given format. The method further includes the step of modifying the control section that is associated with the modified data section, such that the error correction and error detection codes match the modified data section.

What is claimed is:  
     
       1. In a manufacturing process of a continuous linear velocity (CLC) storage medium, a method for rendering at least one file stored on said CLV storage medium immunized against an unauthorized duplication; the CLV includes a plurality of consecutive blocks, each including a data section and control section; the control section includes at least one error correction, and at least one error detection code; said blocks are configured in a given format; 
       the method comprising the steps of:  
       (a) modifying at least a portion of the data section in at least one of said blocks so as to constitute modified data section; said modified data constitutes reconfigured format which violates said given format;  
       (b) modifying the control section associated with said modified data section, such that at least said error correction or said error detection codes substantially match said modified data section.  
     
     
       2. The method of claim  1 , wherein said reconfigured format includes extended time duration that exceeds a specified threshold. 
     
     
       3. The method according to claim  1 , wherein said CLV storage medium is a DVD carrier. 
     
     
       4. The method according to claim  1 , wherein said CLV storage medium is CD-ROM carrier. 
     
     
       5. The method according to claim  1 , wherein said files are selected, each, from a group which includes executable file, data file, application processible file. 
     
     
       6. A continuous linear velocity (CLV) storage medium having at least one file stored on said CLV storage medium; the CLV being immunized against an unauthorized duplication; the CLV includes a plurality of consecutive blocks, each including a data section and control section; the control section includes at least one error correction, and at least one error detection code; said blocks are configured in a given format; at least one of said blocks includes modified data in the data section constituting modified data section; said modified data constituting reconfigured format which violate said given format; the control section associated with said modified data section is modified such that at least said error correction or said error detection codes substantially match said modified data section. 
     
     
       7. The CLV of claim  6 , wherein said modified data includes extended time duration that exceeds a specified threshold. 
     
     
       8. The CLV of claim  6 , being a DVD carrier. 
     
     
       9. The CLV of claim  6 , being a CD-ROM carrier. 
     
     
       10. The CLV of claim  6 , wherein said files are selected, each, from a group which includes executable file that includes application program, data file, application processible file. 
     
     
       11. The method of claim  1 , wherein said modified data is spread in at least one frame of said block, contituting at least one customized frame. 
     
     
       12. The method of claim  11 , wherein at least some frames in said block, other than said customized, belong to an application program. 
     
     
       13. The CLV carrier according to claim  6 , wherein said modified data is spread in at least one frame of said block, constituting at least one customized frame. 
     
     
       14. The CLv carrier of claim  13 , wherein at least some frames in said block, other than said customized frames, belong to an application program. 
     
     
       15. A real-time error handling produce associated with a continuous linear velocity (CLV) storage medium having at least one file stored therein; the CLV includes a plurity of consecutive blocks, each including a data section and control section; the control section includes at least one error correction, and at least one error detection code; said blocks are configured in a given format; 
       the real-time error handling procedure is adapted to executed the following steps, that include:  
       a) detecting modified data in the data section of at least one block; said modified data constituting reconfigured format which violate said given format;  
       b) checking that the control section associated with said modified data section is modified such that at least said error correction or said error detection codes substantially match said modified data;  
       c) in the case that at least the conditions of said steps (a) and (b) are met, classifying said CLV as an original CLV, and otherwise classifying said CLV as an unauthorized duplication.  
     
     
       16. The real-time error handling procedure of claim  15 , wherein said modified data includes extended time duration that exceeds a specified threshold. 
     
     
       17. The real-time error handling procedure of claim  15 , wherein said CLV carrier being a DVD carrier. 
     
     
       18. The real-time error handling procedure of claim  15 , wherein saud CLV carrier being a CD-ROM carrier. 
     
     
       19. The real-time error handling procedure of claim  15 , wherein said files are selected, each, from a group which includes executable file that includes application program, data file, application processible file. 
     
     
       20. The real-time error handling procedure of claim  15 , wherein said modified data is spread in at least one frame of said block, constituting at least one customized frame. 
     
     
       21. The real-time error handling procedure of claim  15 , wherein at least some frames in said block, other than said customized frames, belong to an application program. 
     
     
       22. A continuous linear velocity (CLV) storage medium having at least one file stored on said CLV storage medium; the CLV being an unauthorized substantially duplication of an original CLV; the CLV includes a plurality of consecutive blocks, each including a data section and control section; the data section of said blocks including a data constituting a file; said file is rendered inoperable since at least a portion thereof accommodated in said original CLV is absent in said unauthorized duplication of said CLV. 
     
     
       23. The CLV of claim  22 , wherein said file is selected from a group which includes executable file that includes application program, data file, application processible file.